So I was at a writers’ conference this past weekend and I mentioned the blog to Brianne Johnson, an agent at the respected Writers House, and told her the question that comes in fairly regularly here, about how teens can get published. She said she’d be happy to look at manuscripts from teens, and I leaped six inches into the air.

If you decide to submit to Brianne, send her a cover letter describing the book and send the first 25 pages in a Microsoft Word document, as an attachment.  Brianne...